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37 lines
972 B
Text
37 lines
972 B
Text
[[esql-project]]
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=== `PROJECT`
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The `PROJECT` command enables you to specify what columns are returned and the
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order in which they are returned.
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To limit the columns that are returned, use a comma-separated list of column
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names. The columns are returned in the specified order:
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[source,esql]
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----
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include::{esql-specs}/docs.csv-spec[tag=project]
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----
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Which returns:
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[%header,format=dsv,separator=|]
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|===
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include::{esql-specs}/docs.csv-spec[tag=project-result]
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|===
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Rather than specify each column by name, you can use wildcards to return all
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columns with a name that matches a pattern:
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[source,esql]
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----
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include::{esql-specs}/docs.csv-spec[tag=projectWildcard]
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----
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The asterisk wildcard (`*`) by itself translates to all columns that do not
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match the other arguments. This query will first return all columns with a name
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that starts with an h, followed by all other columns:
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[source,esql]
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----
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include::{esql-specs}/docs.csv-spec[tag=projectDoubleWildcard]
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----
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